<!DOCTYPE html>
<html>
<head>
	<title>google</title>
	<script src="http://maps.googleapis.com/maps/api/js?key=AIzaSyBzE9xAESye6Kde-3hT-6B90nfwUkcS8Yw&sensor=false"></script>
 
<script>
	function initialize()
	{
	    var mapProp = {
	        center:new google.maps.LatLng(51.508742,-0.120850),
	        zoom:5,
	        mapTypeId:google.maps.MapTypeId.ROADMAP
	    };
	    var map=new google.maps.Map(document.getElementById("googleMap"), mapProp);
	}
	 
	google.maps.event.addDomListener(window, 'load', initialize);
</script>
<style type="text/css">
	html{height: 100%}
	body{height: 100%;margin: 0;padding: 0;}
	#googleMap{
		height: 100%
	}
</style>
</head>
<body>
<div id="googleMap"></div>
</body>
</html>